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Low Power Hardware Design and Eagle PCB Layout
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Engineering & Manufacturing > Electrical

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  • Posted: Sat, Jun 23, 2012
  • Time Left: Closed
  • Location: Anywhere
  • Client prefers freelancers from:
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    a different location.

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  • Start: Immediately
  • Hourly Rate: Not Sure
  • Hrs/wk: Not Sure | Duration: 1-2 weeks
  • Work View™ Payment Protection
  • W9 Not Required
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I need a low power circuit designed with a PCB laid out in Eagle, including a BOM.

The device will include a microphone, an opamp, and a PIC microcontroller. Typically the device remains in sleep mode where it draws very little power from a battery. If the microphone hears a loud sound, louder than a programmable threshold, it will wake from sleep mode and begin averaging the amplitudes over 0.25 seconds and saving each average with a timestamp to non-volatile memory. After one minute the device will go back to sleep. The real time clock time needs to be set by USB, and there needs to be a way to get the data off of the device by USB. It's okay if the data is dumped into HyperTerminal, no need to develop a GUI at this time. It is very important to design the hardware to consume very little power. The device must run at least 3 months in sleep mode on one battery. I prefer to run the system off of a single 3V lithium coin cell battery, but I have not done any calculations y...

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Job ID: 31446389
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Proposal SEALED

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Proposal SEALED

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Proposal SEALED

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